Rocket launcher in a school yard?

It shows a Hamas rocket launcher which
was set up in a school yard being destroyed by Israeli counter-fire.
Ostensibly the persons loading the rocket launcher were killed or
injured when the rocket launcher was destroyed.

One would guess that school classes
were canceled for the day, if they were being held to begin with. I
have a lot of problems with this video, but then I have a lot of
problems with both sides
in the conflict in Gaza. Anyone wanting to comment on this?